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The TPS6261x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6261x supports up to 350-mA load current, and allows the use of low cost chip inductor and capacitors.
With a wide input voltage range of 2.3V to 5.5V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.2V to 2.3V.
The TPS6261x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
The PFM mode extends the battery life by reducing the quiescent current to 31µA (typ) during light load operation. For low-frequency noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
The TPS6261x is available in an 6-pin thin chip-scale package (CSP, 0.4mm max. height).
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | 350-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN CHIP-SCALE PACKAGING datasheet (Rev. A) | 05 Apr 2010 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 11 Dec 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Analog Design Journal | Understanding 100% mode in low-power DC/DC converters | 22 Jun 2018 | ||
| Analog Design Journal | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 24 Oct 2017 | ||
| Analog Design Journal | Testing tips for applying external power to supply outputs without an input voltage | 24 Oct 2016 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 17 Aug 2015 | ||
| Analog Design Journal | Five steps to a great PCB layout for a step-down converter | 29 Jan 2015 | ||
| Application note | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 13 Jan 2012 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 17 Jun 2011 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFD) | 6 | Ultra Librarian |
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